It is well known in academic circles that scientists have understood the physics behind climate change for more than a century. This resource video from PBS explores how long we've known, and why it is difficult for people to take action. This resource is recommended for teaching.
ESS3: Earth and Human Activity
5.ESS3.1 Obtain and combine information about ways individual communities use science ideas to protect the Earth’s resources and environment.
Social Science Analysis (K-12)
4.24 Explain individual and cooperative approaches people have taken, or could take in the future, to address local, regional, and global problems as well as predict possible results of those actions.
8.34 Analyze how a specific problem can manifest itself at local, regional, and global levels over time, identifying its characteristics and causes, and the challenges and opportunities faced by those trying to address the problem.